package com.demo.redis.config;

import java.lang.reflect.Method;

import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.CachingConfigurerSupport;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.interceptor.KeyGenerator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.cache.RedisCacheManager;
import org.springframework.data.redis.connection.RedisConnectionFactory;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.serializer.Jackson2JsonRedisSerializer;
import org.springframework.data.redis.serializer.RedisSerializer;
import org.springframework.data.redis.serializer.StringRedisSerializer;

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;

@Configuration
@EnableCaching //开启缓存
public class RedisConfig<K, V> extends CachingConfigurerSupport {

	/**
	 * 生成key的策略
	 * 
	 * @return
	 */
	@Bean
	public KeyGenerator keyGenerator() {
		return new KeyGenerator() {
			@Override
			public Object generate(Object target, Method method, Object... params) {
				StringBuilder sb = new StringBuilder();
				sb.append(target.getClass().getName());
				sb.append(method.getName());
				for (Object obj : params) {
					sb.append(obj.toString());
				}
				return sb.toString();
			}
		};
	}

	/**
	 * 管理缓存
	 */
	@Bean
	public CacheManager cacheManager(RedisTemplate<K, V> redisTemplate) {
		RedisCacheManager rcm = new RedisCacheManager(redisTemplate);
		return rcm;
	}

	/**
	 * StringRedisTemplate<String, Object> 配置
	 * @Bean("stringRedisTemplate"
	 */
	@Bean
	public RedisTemplate<String, String> stringRedisTemplate(RedisConnectionFactory factory) {
		StringRedisTemplate template = new StringRedisTemplate(factory);
		template.setConnectionFactory(factory);
		// value序列化
		Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(
				Object.class);
		// key序列化,解决乱码
		RedisSerializer<String> keyStringSerializer = new StringRedisSerializer();
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(om);
		template.setKeySerializer(keyStringSerializer);
		template.setHashKeySerializer(keyStringSerializer);
		template.setValueSerializer(jackson2JsonRedisSerializer);
		template.afterPropertiesSet();
		return template;
	}

	/**
	 * RedisTemplate<String, Object> 配置
	 * @Bean("redisTemplate")
	 */
	@Bean
	public RedisTemplate<K, V> redisTemplate(RedisConnectionFactory factory) {
		RedisTemplate<K, V> template = new RedisTemplate<>();
		template.setConnectionFactory(factory);
		Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new Jackson2JsonRedisSerializer<Object>(
				Object.class);
		// key序列化,不能解决乱码
				RedisSerializer<String> keyStringSerializer = new StringRedisSerializer();
		ObjectMapper om = new ObjectMapper();
		om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
		om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
		jackson2JsonRedisSerializer.setObjectMapper(om);
		template.setValueSerializer(jackson2JsonRedisSerializer);
		template.setKeySerializer(keyStringSerializer);
		template.setHashKeySerializer(keyStringSerializer);
		template.afterPropertiesSet();
		return template;
	}

	/**
	 * RedisTemplate<String, Object> 配置
	 */
	// @Bean("redisTemplate")
	// public RedisTemplate<String, Object> rredisTemplate(RedisConnectionFactory
	// factory) {
	// RedisTemplate<String, Object> template = new RedisTemplate<>();
	// template.setConnectionFactory(factory);
	// // 更改序列化方式
	// Jackson2JsonRedisSerializer<Object> jackson2JsonRedisSerializer = new
	// Jackson2JsonRedisSerializer<Object>(
	// Object.class);
	// ObjectMapper om = new ObjectMapper();
	// om.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.ANY);
	// om.enableDefaultTyping(ObjectMapper.DefaultTyping.NON_FINAL);
	// jackson2JsonRedisSerializer.setObjectMapper(om);
	// template.setValueSerializer(jackson2JsonRedisSerializer);
	// template.afterPropertiesSet();
	// return template;
	// }

}
